Tanking this fight is actually fairly simple! The main tank is only targeted with a small handful of the extra mechanics and the OT is an extra DPS for everything but the adds phase. Really, this fight is won or lost on your group's ability to not get hit by stuff they can dodge. That's part of what made yesterday so frustrating for me; It's one thing to die to overwhelming mechanics, but "a circle appeared under you, move away from it" isn't a raid mechanic.
If we're playing with Pessimism engaged, if your group is wiping prior to adds repeatedly it doesn't bode well. It reminded me a lot of Titan Hard Mode on release (and later, Titan EX) where your fight was over before even reaching the Heart.
I hope this helps people pass the encounter, though! It's a really neat fight, and fun when you're not wiping to dumb stuff.
If we're playing with Pessimism engaged, if your group is wiping prior to adds repeatedly it doesn't bode well. It reminded me a lot of Titan Hard Mode on release (and later, Titan EX) where your fight was over before even reaching the Heart.
I hope this helps people pass the encounter, though! It's a really neat fight, and fun when you're not wiping to dumb stuff.